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1.V 22 1927. 1,621,601 Marc M. REsl-:K

I THERMOSTATICALLY CONTROLLED WATER HEATING SYSTEM Filed sept; 27, 192s 3 Sheng-sheet 1 I I I I I I I l I 1 I I I I I l I I Y 4, I l A l I l Y f' j "I o I V 7# I I l b I I r'-",:*" I `f l I F -t"`:

'2 l." 7 l: l j) 'y I ff f aina- 3 LJ' /l' 4 lo )90000000000 v e 23 X5' ATTORNEY I 1, 21,601 March 22,1927. y MIRESEK 6 THERMOSTATICALLY CONTROLLEDWATER HEATING SYSTEM Filed sept. 27, 1923 s Sheets-sheet 2 INVENTOR am BY 34u11, G1Va-vk 0141411 ATTORNEY March 22 1927.

' M. RESEK THERMOSTATICALLY CONTROLLED WATER HEATING SYSTEM 3 Sheets-Sheet 3 /3 30 g /7 79 "i f 42 A 40 -lg E sa 4 i* `a7 L:e2 55 7 43 za E v3,33 7* 3, T. 'E' as *il s a+ 70 INVENTOR YYLAVb @i BY A QM,MM,QM

ATTORNEY The present invention is especially adapt- Patented Mar. 22, 1927.

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rain?, or CLEVELAND, ori-ro, a coaroaarion or oiiizo..

assienon fro rnnrnorion srovn coivr- THERMOSTATICALLY-CONTRLLED `VVATIERHEATING; SYSTEM.

Application filed September 2"?, 1923. Serial No. 665,243.

My present invention, like that which constitutes the subject matter of a companion application filed by me on the th day of September, 1923, Serial ,No @G4-.,853 and entitled wWater heating systems relates` particularly to that class ofwater heating systems used in dwelling houses and such places for lsupplying hot water for general pur-l poses.

ed for use in water heating systems that are tired `by liquid fuel burners.

VThe objects of this invention are to provide a water heating system of the class involvinga storage tank, a water heater in circulatory communication therewith, and a heating-oi` combustion device, preferably an oil burner, that is supported in operative relation to the circulating element or coil of the water heater and wherein a thermostat is present inthe connections leading from the storage tank to the water heater and which has operative. connection with the heating device or burner thereby to automatically reduce the heat of the device or burner when the entire contents of the storage tank has been heated to the desired temperature; toprovide-in a water heating system of the aforesaid character incorporating an oil burner, preferably of the wick type-a water chamber which-is dire'ct-ly'associated with or surrounds the burner and through which chamber the waterv passes as it flowsfroin the storage tank to thel circulating elementor coil of the water heater,

and to place within said chamber, or in such relation thereto as will cause it to be atleeted by the temperature of the` water therein as well as by the temperature of the burner parts, a thermostat having operative connection withthe burner whereby the flame of lthe burner may be reduced, as by turning down the wick,when the entire contents of the tank has been heated to the required degree or when the temperature of the burner partsl becomes excessively high.

As to that phase of my present invention which provides for the lplacing of a thermostatwithin the connections leading from the storage tank to the water heater., it may be pointed out that this has certain marked advantages over an arrangement whereof I have knowledge and in which al thermostat is included inthe connections which lead from the water heater to the storage tank at theA approximate point inl the systemV where the water is the hottest. As a consequence of the thermostat being situated at this point of greatest heat, itis caused toreduce the heat or fire long before the tank is full of hot water,V or if adjusted to .affect Y' the 're'only under a high temperaturefso that the contents of the tank may be 'heated before the thermostat becomesreffectivefitV defeats toa material extent its intended pur,-

pose. Furthermore, in such a construction, while adjusted to operate'properly under normal conditions, if the fire is turned upV unusually high for the purpose of Vheating i the water quickly, as is` very frequently done, it causes the thermostat to prematurely operate while ytheV temperature of the i.

water in the tank is still undesirably low. By placing the thermostat in the connections leading Afrom the tankto the water heater, as in inyinvention, there isthe assurance that so longas the burnerparts remain at u asafe temperature the thermostat will not l act to reduce the heat of the heating device Qi' burner until the temperature of the water within the entire system has reached a Apredetermined degree. i Y u A further object of my lpresentV invention is to provide operative connections between the thermostat and wick of suchV nature as will 'not interfere with a manual adjustment of the wick at any time. y l f Further and more general objeetsare 'to provide a construction which iscompara-V tivelyV simple, is economical of manufacture,

is'convenient of installation, and highly etlid cient and reliable inthe accomplislimentof the ends in view andwhich isdurable and not likely to get out 'of order.

uTo these ends my invention'may befde'- fined as consisting of the combination and arrangement of parts set out in the claims annexed hereto and illustrated inthe accompanying drawings wherein Fig. l represents a water heating system embodying my invention; Fig. 2 is an enlarged side elevation of the water `iacketed burner incorporating the thermostatic control, parts being broken away to .more clearly illustrate theco'nstructioni Fig. 3 is a horizontal section substantiall 1 on theV line 3-3 of Fig. 2; Fig. 4 is Y an enlarged sectional detail of a part of the burner and the thermostatic control ;V and Fig. 5 isa section on the lines 5-5 offFigs; Zande.` v"

The storage tank, which is shown as an ordinary range boiler, is designated l, and the water heater is designated 2. The heater includes a circulating element or coil 3 which connects, at its upper end, with a pipe 4, that leads to the top o the storage tank l, the pipe '4. being shown as connected, through a T 5, with the egress pipe 6 through which hot water is drawn from the tank to various points in therbuilding. The inlet pipe is designated 7 and, in accordance with prevailing practice, leads downwardly through the top ot the tank to within a suitable distance ot its lower end, as indicated in dotted lines.

The water heater 2 is supported by a stand 10 which sustains an oil burner ll with its flue or drum 12 inoperative relation to the circulating element or coil 2l. The burner 11 is of 'the tubular type and comprises inner and outer wick tubes l5 and 16 respectively. A water jacket 17 partly surrounds the lower end ot the burner and it is conveniently formed ot a hollow casting having a iiange 18 at its upper end into which the outer wick tube 16 of the burner is Iitted, the inner cylindrical wall if) of the jacket constituting, in effect, the lower portion of the outer wick tube. An annular ilange 2O that extends inwardly from the lower end of' the water jacket is joined to the bottom of the inner wick tube l5 and constitutes the bottom wall of the annular wick space 22 which receives oil from a supply pipe 23 through an elbow titting 24 applied to the lower rear side ot the outer wick tube. The oil reservoir from which the supply pipe 23 leads is omitted for clearness.

A tubular wie r 25 occupies the wick space and rests at its lower end upon a wick elevator 26 that is connected to the lower end of a rod 27 which occupies a vertical position within a reentrant portion 8O oit the inner wick tube 15.

rThe upper end ot the rod 27 is exposed above the top of the portion 30 and has connected to it a rack member 3l that is conveniently in the torni of a channel which embraces the reentrant portion 30 and has, in one of its side flanges, a series of slots which effect a rack that is designated 32. The rack member is guided through an opening in a bracket 33 that is secured to the bottom of the burner and within vertical branches 34 and 35 ot which is journaled the wick adjusting spindle .56. A pinion 37 is secured to the spindle and meshes with the rack 32, F rom this it will be seen that when the spindle is rotated in opposite directions it will reciprocate the rack member 3l and likewise the rod 27, thereby to raise andlower the wick 25.'

A cylindrical casing 40 is shown as formed integral with the water jacket 17 and as situated within the front portion thereof,

said casing opening outwardly through the front wall ot' the Water jacket and being internally threaded at its outer end for the reception of a screw plug 42. A thermostat 43 is contained within the casing 4() and has at one enol a stud 44 that is positioned within a hollow boss 45, termed at the inner end ot the casing, and a stein 46 projects from the opposite or forward end ot the thermostat through a bore in the plug 42 and is secured against turning with respect to said plug by a key 47, the stem being iree to slide. rEhe thermostat 43 is in the nature ot a metal bellows which contains a fluid that is readily responsive to temperature changes, the tluid expanding' under heat and elongating the bellows thereby to project the stem 46. A head 50 is pinned or otherwise secured to the outer end of the stem 46 and it contains a vertical bore 5l within which a plunger 52 is reciprocably supported, the upper end of the plunger being reduced in diameter and extended through the reduced upper end of the bore. rlhe plunger is shown as held against turning with respect to the head 5() by means oi' a pin 53 which projects outwardly rroin the plunger' through a slot 54 in the head. The lower endV of the bore 5l is closed by a screw between the inner end of which and the plunger 52 is compressed a spring 56, the spring tending to maintain the plunger 52 in its extreme upward position.

The outer end ot the wick adjusting spindle 36 is provided with the usual hand wheel 60, and inwardly of the hand wheel a hub portion ot the disk 6l is secured to the spindle, as by means oi a pin 62. An annular friction shoe 63 is secured to the peripheral ,portion of the disk 6l, as by rivets 64. A,

pressure plate 65, rotatably mounted upon the spindle is urged into trictional engagement with the shoe 63 by a spring 66 that is compressed between said plate and an opposed part 67 of a bracket 68 that extends forwardly and thence upwardly from the branch 34 ot the previously mentioned bracket 33. The parallel branches 34 and G9 of the respective brackets 33 and 68 are disposed on opposite sides ot a cross inember 70 of the stand l0 and are secured thereto as by one or more bolts 7i. The spring 65 is coiled about a sleeve 73 which has its outer end secured, as rivets 74, to the pressure plate 65, and the outer end of the spring is engaged through an aperture in the pressure plate 65 while its opposite end 7G is engaged through an aperture in the portion 67 of the bracket 68. The spring is so wound as to cause it to rotate the pressure plate 65 in a counter-clockwise direction (when the parts are viewed from the front), in addition to maintaining the pressure plate with the desired degree ci 'friction against the friction shoe 53. The upper end of an extension 77 `of the pressure plate is turned rearwardly over the head and carries a pin 79 for cooperating with the previouslyV mentioned plungen-52. From Fig. 5 it will be seen that the adjacentends.,

ofy the plunger 52 and pin 7 9 arev formed so asto engage each other in the manner.

plunger 52 so that the pressure plate is heldV with its extension 77 vertical andthe springA v66 under tension, it being remembered that the spring is at alltnnesunder sufficient coml'pressionto urge the pressure plate 65 against .the friction shoe 63"with enough force to cause the rotation of the pressure plate to be transmitted to thespindle 36 through the disk 61, the partsthus constituting a friction clutch between the spindle and the friction plate. TheA friction is not so great however as to prevent an operator from turning the spindle 36 as by means of the hand wheel independently yof the pressure plate for the purpose of adjusting the wick to regulate the fire. With the parts set las shown in the drawings the fire remains substanti-- ally constant. As the water within the circulating element or coil 3 is heated it will rise through the pipe 4 and enter the storage tank 1 gradually displacing cold or cooler water Vfrom the bottom Vofl the tank through a pipe 85 which has connection with the lower portion of the near branch of the water jacket 17, considering the parts as viewed in the drawings, and after passing through the jacket 17 the water departs through a pipe 86 which is connected with n the upper far side of the vjacket and leads to the bottom of the circulating element or coil 3.

The circulation thus created continues until'the water which passes from the lower Vend of the tank through the pipe 85 to the water jacket 17 is hot enough to cause the thermostatli to be elongated vsufliciently to remove the plunger 52 out of'engagement with `the pin 79, causing the pressure plate to be released and permitting the spring 66 to rotate it in a counter-clockwise direction, or in the direction indicated by the arrow in Fig. 5. This movement of the i Y pressure plate will be transmitted through Y the friction shoe 63 and disk 61to the spindle and thence throughl theV 'connections al- -presence yof the water in the water jacket Y tends to maintain the burner parts relatively ready described to the wick, lowering thef wick into the wick tubes and therebyv eXI` tinguishingthe flame. Y f

Y After thewater has cooled sufficiently, or` hot water has been withdrawn from-the .tank to permitentrance of additionalcoldwater which shall be practically `immediately transmitted to the water jacket 17, thethermostatt willbe caused to contract,imoving the plunger 52'again into the path of the pin 7 9` after which the pressureplate may be re-` stored to its former position by Vmeans of the handle inwhich position vit will be held by the engagement of the'pin 79 .with` the plunger 5,2. This should elevate the wickY to,` burning position but if through the above performance the wick has been thrown Vout of adjustment with respect to the pressure plate it `may be elevated ,to `the re-: quired height by means'of the hand wheel GO.- L W f I have described the thermostat as 4itwould function under the influence ofthe temperatureof the water. Additional to this, should the burner partsrbecome over# if heatefhthe heat thereof will be transmitted to the thermostat, causing the action -above ydescribed and the loweringof the wick. By inspecting the construction as illustrated in Figs. 3 and 4, it will be seen `howinti1nately the thermostat and outer wick tube are connected'and it is obviousthat should the inner-wick tube become overheatechwhich is the part that usually overheats first, the temperature thereof will be transmitted to the thermostat both through its metallic con nection therewith and through the lintervening 'body of oil that lis present within the wick space 22. Y f It will beseen, therefore, that my'invention provides a contrivance which will automatically reduce or extinguish the Vheat 'orly lire when the water within the system has reacheda predetermined degree oftempera-V ture or when the burner partsbecome overheated, thus insuring against fire hazards or damage tothe apparatus from an overheated condition of either the wateror the burner parts. It may alsoobe explained Vthat the cool and thus materially reduces'the liability of fires.vr j

Having thus described my invention, what I claim is: i j i Y 1. In a waterheating system involving `a storage tank and a water heater in communication therewith, vsaid `water heater incorporating a liquid fuel burner by.`which the water heater is iired and a water chamberin 'i close proximity to the burner, said chamber `being in the connections leading from the ,I

storage tank tothe water heater,` aA thermof .Y

stat so situated as to be operated by thetemperature of the water in said connections l when the same reaches a predetermined degree or' by the temperature of the burner parts when the same becomes excessively high, and operative connections through which the thermostat acts to reduce the heat of the burner.

2. In a water heating system involving a storage tank, and a water heater in circulation therewith, said water heater incorporating a liquid fuel burner of the wick type and a water chamber in close proximity to the burner, said chamber being in the connections leading from, the storage tank to the water heater, a thermostat so situated as to be operated by the temperature of the water in said chamber when the same reaches a predetermined degree, or the temperature of the burner parts when the same becomes ei;- cessively high, and operative connections between the thermostat. and the wick of the burner through which the thermostat acts to lower the wick.

l tion, a storage tank, a water heater, a liquid fuel burner ofthe wick type for firing the water heater, a water'jacket incorporated in the burner, communicative connections leading from the top of the water heater to the storage tank, similar connections leadingfrom the lower end of the storage tank Vto the lower end of the water jacket, and further connections of a similar nature leading from the top of the water jacket to the bottom of the water heater, a thermostat subjected to the temperature of the water in the water jacket, and operative connections through which the thermostat acts to reduce the-heat of the burner.

5. In a water heating system, incombination, a storage tank, a water heater, a liquid fuel burner of the wick type for firing the water heater, a water jacket incorporated in the burner, communicative connections leading from the top of the water heater to the storage tank, similar connections leading from the lower end of the storage tank, throughV the water jacket, to the bottom of the water heater, a thermostat subjected to the temperature of the water in the water jacket, means for raising and lowering` the wick of the burner, and operative connections between the thermostat and said means, said connections including mechanism wherebythe means may be operated to raise and fuel burner of the wick type for firing the water heater, a water jacket incorporated in,

the burner, communicative connections leading from the top of the water heater to the storage tank, similar connections leading` from the lower end of the storage tank toy the lower end of the water jacket, and further connections of a similar nature leading from the top of. the water jacket to the bottom o-f the water heater, a. thermostat subj ectedto the temperature of the water in the water jacket, means for raising and lowering the wick of the burner, and operative connections between the thermostat and said means, said connections including a friction clutch whereby the means may be operated to raise and lower the wick. independently` of the thermostat. f

7. ln a water heating system involving a storage tank and a water heater in circulation therewith, said water heater incorporating a liouid fuel burner of the wick type, a

thermostat subjected to the temperature ofl the water within the connections leading from the tank to the water heater, a spindle rotatably supported and operatively connected to the wick so that the wick; may be raised and lowered by turning the spindle, and operative connections between the thermostat and the spindle, said connections involving a friction clutch through which the thermostat acts to rotate the spindle ina direction to lower the wick when the water within the aforesaid connections rises to ay predetermined degree and whereby the spindle may be rotated to adjust the wick independently of the thermostat.

8. In a water heating system involving al storage tank and awater heater in circulation therewith, said water heater incorporating a liquid fuel burner of thewick type, a thermostat subjectedV to the temperature of the water within the connections leadingfr from the tank to the water heater, a spindle rotatably supported and operatively connected to the wick so that the wick may be4 aressin' Isaid friction )late against said.

member and tending to rotate said plate and through it the spindle in adirection tol lower the wick, and separable connections between the thermostat and said pressure plate for normally retaining said pressurev plate in a given position, said connections being rendered ineffective through the action of the thermostat.

9. In a water heating system involvin a storage tank andv a water heater iny circu ation therewith, said water heater incorporating a liquid fuel burner of the ywick type, a thermostat subjected to the temperature of the water within the connections leading from the tank to the water heater', a spindle rotatably supported and operatively connected to the wick so that the wick may beA raised and lowered by turning the spindle, a member secured to the spindle, a pressure plate rotatably supported uponl the axisof the spindle adjacent said member, means acting to press said plate against said member and to rotate said member and through it the spindl-e in a direction to lower theV wick, a head movably supported and'connected to the thermostat, separable connections between the pressure plate` and said `head whereby the pressure plate is held in which the water heater is lired and a waterk chamber in heat receiving relation to the body of the burner but below the burner flame and that is in circulatory communication with the circulating element of the heater, a-thermostat subjected to the tem-ky perature of the water in said chamber, and operative connections kthrough which the thermostat acts to reduce theheat of the burner. Y

11. In a water heating system, theJ combination of a water container, a yliquid fuel burner of the wick type vin operative relation to the water container, a thermostat so i Situated as to be aected by the temperature of the water in thev system or by the temperature of the burner parts, and operative connections between the thermostat and the wick of the burner through which the thermostat acts to lower the wick when the tem- .Y Y

perature of the water within j the system or the temperature of the burner parts becomes excessively high.

12. In a water heating system, the combination of a water container, a liquid fuel burner of the wick type in operative relation to the, water container, means for raising and lowering thewick, a thermostat so situated as to be aected `by the temperature of thewater within the system, and operative connection between the thermostat `and the aforesaid means through which `said thermostat operates said means tolower the wick when the temperature of the Vwater `within the system rises to a 'predetermined degree, said connections' permitting adjustment of the wick through the aforesaidV means independently of-thethermostat. w

13. vIn a water heating system, the combination of a water container, a liquid fuel burner of the wick type in operative relation to the water container, means for rais- 1 ing and lowering the wick, a thermostatso l situated as to be affected by the' temperature of the water withinythe system, or bythe temperature of the burner parts, and' operative connection between thethermostat and the aforesaid means through which said thermostat operates said Vmeans to lower the wick when the temperature of the water within the system or 'the temperature of the burner parts becomes excessively high, said connections permitting adjustment of the wick through the aforesaid means independently of the thermostat.

In testimony whereof, I hereunto'YV afiix Y I my signature.

' Y MARC RESEK. 

